diff --git a/.github/workflows/modified_scripts_build.yml b/.github/workflows/modified_scripts_build.yml
index bdd82d9d..5a78729c 100644
--- a/.github/workflows/modified_scripts_build.yml
+++ b/.github/workflows/modified_scripts_build.yml
@@ -83,7 +83,11 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ${{fromJson(needs.discover_modified_scripts.outputs.versions)}}
-        os: ["macos-14", "macos-15", "macos-15-intel"]
+        os:
+          - macos-14
+          - macos-15
+          - macos-15-intel
+          - macos-26
         exclude: ${{fromJson(needs.discover_modified_scripts.outputs.versions_macos_build_exclude)}}
     runs-on: ${{ matrix.os }}
     steps:
@@ -193,7 +197,9 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ${{fromJson(needs.discover_modified_scripts.outputs.versions)}}
-        os: ["ubuntu-22.04", "ubuntu-24.04"]
+        os:
+          - ubuntu-22.04
+          - ubuntu-24.04
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v6
diff --git a/.github/workflows/pyenv_tests.yml b/.github/workflows/pyenv_tests.yml
index f9e10924..f6575f0f 100644
--- a/.github/workflows/pyenv_tests.yml
+++ b/.github/workflows/pyenv_tests.yml
@@ -10,11 +10,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - ubuntu-24.04
           - ubuntu-22.04
-          - macos-15-intel
-          - macos-15
+          - ubuntu-24.04
           - macos-14
+          - macos-15
+          - macos-15-intel
+          - macos-26
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v6